An offline type molten iron ladle cover adding and removing device

Abstract

The utility model relates to hot metal ladle adds and uncovers the technical field of covering, concretely is a kind of offline hot metal ladle adds and uncovers covering device. Including elevated track, track platform car, adds and uncovers covering car and ladle cover frame, the elevated track is set in the both sides of iron track conveying hot metal ladle, and running direction is parallel with the iron track, the track platform car is installed on elevated track, and can move on it along the direction of iron track, the beam of track platform car is located above hot metal ladle, and extend to the ladle cover frame above the outside of elevated track, the adding and uncovering covering car is provided with lifting device and the lifting device driven spreader, for grabbing and releasing ladle cover, the ladle cover frame is set to the outside of elevated track, for storing ladle cover. Solve the problem existing in prior art, inconvenient operation, low automation level, high cost and poor adaptability etc., to realize efficient, energy-saving, environmental protection and economic hot metal transportation heat preservation operation.

Description

Technical Field

[0001] This utility model relates to the field of molten iron ladle lid-lifting technology, specifically an offline molten iron ladle lid-lifting device. Background Technology

[0002] In steel smelting and production, energy conservation and consumption reduction at every stage are of paramount importance. Molten iron, as the core raw material for steelmaking, directly impacts energy consumption and costs during transportation due to heat loss. Currently, molten iron is transported long distances between ironmaking and steelmaking plants via railway. Because of the long routes and travel times, the temperature drop of molten iron during transportation typically reaches 60-150°C. However, the greatest heat loss occurs during the process of the molten iron ladle being filled and returned to the ironmaking plant. During this stage, the temperature drop of the empty ladle can reach up to 300°C, resulting in significant heat waste. Furthermore, the hot molten iron undergoes an oxidation reaction with the air during transportation, producing large amounts of black smoke, causing severe air pollution to the plant area and surrounding environment.

[0003] To address these issues, some iron smelting plants in the industry have adopted a solution of directly installing a lid-lifting device on the molten iron ladle cars. This device, driven mechanically or hydraulically, covers the ladle after it is filled with molten iron, aiming to achieve the purposes of heat preservation, reducing temperature drop, and preventing the spread of smoke and dust. However, the existing technology has many significant defects in practical applications: (1) The operation is cumbersome and the process coordination is poor. After the train transports the molten iron ladle car group to the designated iron receiving position in the steel plant, the power plug needs to be manually connected to the ladle car in order to control the opening of the cover. The iron receiving position may not be fixed, and the empty ladle car cannot wait at the fixed power position for a long time, which leads to the interruption of the production process and the inflexible scheduling, which seriously restricts the production efficiency; (2) The degree of automation is low and the resources are wasted. Each operation requires manual plugging and unplugging of the cable connector and manual control, which makes it difficult to achieve automated operation. More importantly, the scheme requires each molten iron ladle car to be equipped with an independent opening and closing device and power system, which results in huge equipment manufacturing costs and resource waste; (3) Insufficient adaptability. The device is bound to a specific model of molten iron ladle car, which makes it difficult to adapt to molten iron ladles of different forms and heights, and has poor versatility. Utility Model Content

[0004] In order to overcome the shortcomings of the existing technology, this utility model provides a solution to the problems of inconvenient operation, low level of automation, high cost and poor adaptability in the existing technology, thereby realizing efficient, energy-saving, environmentally friendly and economical molten iron transportation and heat preservation operation.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An offline ladle lid-lifting device includes an elevated track, a track platform car, a lid-lifting car, and a lid rack. The elevated track is arranged on both sides of the rails used to transport the molten iron ladle, and its running direction is parallel to the rails. The track platform car is installed on the elevated track and can move along the rail direction. The crossbeam of the track platform car is located above the molten iron ladle and extends to the lid rack outside the elevated track. The lid-lifting car is equipped with a lifting device and a lifting device driven by the lifting device for grabbing and releasing the lid. The lid rack is located outside the elevated track for storing the lid.

[0007] Furthermore, both the track platform vehicle and the cover-lifting vehicle are equipped with independent power systems, enabling them to move on the track and stop at the target location.

[0008] Furthermore, the track platform vehicle moves on the elevated track via a first traveling mechanism, which includes a drive motor, a reducer, wheel sets, and a brake.

[0009] Furthermore, the crossbeam is provided with a track, and the cover-lifting vehicle moves on the track through a second traveling mechanism, which has the same structure as the first traveling mechanism.

[0010] Furthermore, the lifting device is a rack and pinion lifting mechanism, wherein the gear is driven by a motor and meshes with a rack fixed on the lifting device to drive the lifting device to rise and fall.

[0011] Furthermore, the lifting device is a mechanical gripper, an electromagnetic chuck, or a hydraulic clamp.

[0012] Furthermore, the can lid rack is a fixed or liftable structure, and its height matches the working height of the can lid loading and unloading vehicle. It is used to store the maximum number of can lids required for a single can lid loading and unloading operation and can be reused repeatedly.

[0013] Compared with the prior art, the present invention has at least the following technical effects or advantages:

[0014] 1. Significantly Reduces Equipment Costs and Resource Waste: "Offline" means that this utility model exists independently and is not installed on the mobile molten iron ladle car itself, but is fixedly installed at a specific location next to the transportation line. This utility model adopts a fixed installation, and one device can serve multiple molten iron ladle cars, completely avoiding the huge hardware investment and resource waste caused by equipping each molten iron ladle car with an independent cover-opening device, thus significantly reducing equipment investment and maintenance costs.

[0015] 2. Significantly improves the flexibility and efficiency of production scheduling: molten iron ladle cars are no longer limited to fixed power outlets. After the lid is opened, the empty ladle car can be moved immediately and parked anywhere within the steel plant, ready to perform molten iron feeding operations at any time. This effectively solves the problem of process interruptions caused by waiting for power outlets or fixed molten iron feeding positions, making molten iron scheduling more flexible and the entire production process smoother and more efficient.

[0016] 3. Facilitates automated operation and ensures safety and reliability: By employing a self-powered rail platform vehicle and a cover-adding / removing vehicle, combined with an automatic control system, this invention completely eliminates the cumbersome manual cable insertion and removal processes. It easily achieves a fully automated process of precise positioning, cover grabbing, cover addition / removal, and cover storage, not only reducing worker workload and eliminating safety hazards associated with manual operation, but also significantly improving the accuracy and reliability of the operation.

[0017] 4. High versatility and wide application range: The lifting and unloading vehicle of this utility model acts directly on the ladle opening through the lifting device, and its working height and position can be flexibly adjusted through the program. Therefore, its applicability is not limited by the specific form of the molten iron ladle car or the height of the molten iron ladle itself. As long as the ladle opening size is standardized, it can be universally used, greatly improving the universality and application value of the device.

[0018] 5. Outstanding Energy-Saving and Environmental Benefits: By efficiently and reliably completing the capping operation of molten iron ladles, this utility model can minimize the temperature drop of molten iron during transportation, directly saving energy consumption. At the same time, the capping operation effectively suppresses the emission of smoke and dust, which plays a positive role in improving the working environment of the plant area and reducing air pollution. Attached Figure Description

[0019] Figure 1 This is a schematic front view of the structure of this utility model.

[0020] Figure 2 This is a schematic side view of the structure of this utility model.

[0021] Figure 3 This is a schematic diagram of the lifting device structure of this utility model.

[0022] In the diagram: 1. Overhead track; 2. Track platform vehicle; 3. Lid lifting vehicle; 4. Ladle cover rack; 5. Molten iron ladle; 6. Ladle cover; 7. Rack; 8. Gear; 9. Motor; 21. Crossbeam; 31. Lifting device; 32. Lifting tool. Detailed Implementation

[0023] The embodiments of this utility model are described in detail below. To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit this utility model or its application or use. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0024] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] In the description of this utility model, it should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this utility model. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0027] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0028] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0029] like Figure 1-3 The diagram shows an offline molten iron ladle lid-lifting device, which mainly includes an elevated track 1, a track platform car 2, a lid-lifting car 3, and a ladle lid rack 4.

[0030] like Figure 1 and Figure 2 As shown, two columns are located on either side of the railway track, and heavy rails are arranged above the columns, forming the elevated track 1. The elevated track 1 is laid in a direction that is strictly parallel to the direction of the railway track, providing the main support and travel path for the entire device.

[0031] The track platform vehicle 2 is mounted on the elevated track 1 via a first traveling mechanism. The first traveling mechanism includes a drive motor, a reducer, wheel sets, and brakes (not shown separately in the figure), and is powered by its own independent power system (such as a motor). This allows the track platform vehicle 2 to move precisely along the length of the elevated track 1 (i.e., parallel to the rails), covering the entire railway section where the work needs to be done.

[0032] The track platform vehicle 2 has a track on its crossbeam 21. The cover-lifting vehicle 3 is mounted on this track via a second traveling mechanism. The second traveling mechanism is structurally similar to the first traveling mechanism, also including a drive motor, reducer, wheel set, and brake, and has its own independent power system. This allows the cover-lifting vehicle 3 to move along the crossbeam 21 (i.e., perpendicular to the rails). The coordinated movement of the track platform vehicle 2 (longitudinal) and the cover-lifting vehicle 3 (lateral) enables the lifting device 32 mounted on the cover-lifting vehicle 3 to reach any point within the coverage area in the horizontal plane, achieving precise positioning.

[0033] The cover-lifting vehicle 3 is equipped with a lifting device 31 and a lifting device 32 driven by the lifting device 31. For example... Figure 3 As shown, in this embodiment, the lifting device 31 preferably adopts a rack and pinion lifting mechanism. Specifically, a servo motor 9 drives a gear 8 to rotate, and the gear 8 meshes with a rack 7 vertically fixed on the lifting device 32. By controlling the forward and reverse rotation of the motor 9, the lifting device 32 can achieve smooth and accurate upward and downward movements, thereby completing the core action of grasping and releasing the can lid 6. The lifting device 32 can be selected from mechanical grippers, electromagnetic chucks, or hydraulic clamps, depending on the specific structure of the can lid 6, to ensure a firm and reliable grip.

[0034] The lid rack 4 is located on the outer side of the elevated track 1, below the coverage area of ​​the crossbeam 21 of the track platform car 2. It is used to centrally store multiple lids 6. The lid rack 4 can be a fixed-height steel structure or a liftable structure equipped with a lifter (lifting mechanism not shown in the figure). The height of its storage plane must dynamically match the height of the lifting device 32 when the lid-opening car 3 is lowered to its lowest position to facilitate smooth loading and unloading of the lids 6. The lid rack 4 is designed to store the maximum number of lids 6 required for a single lid-opening operation, thus enabling cyclical reuse. Preferably, all lids 6 are of a universal design, applicable to all types of molten iron ladles 5.

[0035] The working principle of this utility model is as follows:

[0036] The capping process: The molten iron ladle 5, filled with molten iron, stops after being transported by the railway train to the working area below this device. The track platform car 2 and the capping / lifting car 3 move, precisely positioning the lifting device 32 above an empty ladle cover 6 on the cover rack 4. Then, the lifting device 31 activates, lowering the lifting device 32 to grab the ladle cover 6 and lifting it. Next, the track platform car 2 and the capping / lifting car 3 move together, precisely transferring the lifted ladle cover 6 directly above the target molten iron ladle 5. Finally, the lifting device 31 activates again, smoothly placing the ladle cover 6 onto the mouth of the molten iron ladle 5, and the lifting device 32 releases and returns to its initial height. This process is repeated to cap every molten iron ladle 5 of the entire train.

[0037] Uncovering process: Uncovering the covered molten iron ladle 5 is the reverse operation of the above process. After the train comes to a stop, the lifting device 32 moves to the top of the lid 6 of the molten iron ladle 5, grabs the lid 6 and lifts it, then moves it to the top of the lid rack 4, and finally stores the lid 6 in the empty space of the lid rack 4.

[0038] The advantages of this utility model are: it eliminates the need to install a cover-opening device on each molten iron ladle car, thus saving on investment costs; it is not limited by the location of the cable plug, and after the molten iron ladle car arrives at the steel plant and is opened, it can be parked anywhere within the steel plant and moved at any time to supply iron; it eliminates the need to plug and unplug cable connectors and manually control the cover-opening process each time, making it easy to achieve fully automatic cover-opening operations; at the same time, it is not limited by the type of molten iron ladle car or the height of the molten iron ladle, and can be used by all molten iron ladles with the same ladle opening size.

[0039] The scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. An offline molten iron ladle with lid-opening device, characterized in that: It includes an elevated track (1), a track platform vehicle (2), a lid-lifting vehicle (3), and a lid rack (4); The elevated track (1) is set on both sides of the rail for transporting molten iron ladles, and its running direction is parallel to the rail; The track platform vehicle (2) is installed on the elevated track (1) and can move along the rail direction on it; the crossbeam (21) of the track platform vehicle (2) is located above the molten iron ladle and extends to the ladle cover frame (4) on the outside of the elevated track (1); The can-lifting vehicle (3) is equipped with a lifting device (31) and a lifting device (32) driven by the lifting device (31) for grabbing and releasing the can lid (6). The can lid rack (4) is located on the outside of the elevated track (1) and is used to store can lids (6).

2. The offline molten iron ladle lid-lifting device according to claim 1, characterized in that: Both the track platform vehicle (2) and the cover-lifting vehicle (3) are equipped with independent power systems, which can drive them to move on the track and stop at the target position.

3. The offline molten iron ladle lid-lifting device according to claim 1, characterized in that: The track platform vehicle (2) moves on the elevated track (1) through a first traveling mechanism, which includes a drive motor, a reducer, a wheel set and a brake.

4. The offline molten iron ladle lid-lifting device according to claim 1, characterized in that: The crossbeam (21) is provided with a track, and the cover-lifting vehicle (3) moves on the track through the second traveling mechanism, which has the same structure as the first traveling mechanism.

5. The offline molten iron ladle lid-lifting device according to claim 1, characterized in that: The lifting device (31) is a gear and rack lifting mechanism. The gear (8) is driven by a motor (9) and meshes with the rack (7) fixed on the lifting device (32) to drive the lifting device (32) to lift.

6. The offline molten iron ladle lid-lifting device according to claim 1, characterized in that: The lifting device (32) is a mechanical gripper, an electromagnetic chuck, or a hydraulic clamp.

7. The offline molten iron ladle lid-lifting device according to claim 1, characterized in that: The can lid rack (4) is a fixed or liftable structure, and its height is matched with the working height of the can lid lifting vehicle (3). It is used to store the maximum number of can lids (6) required for a single can lid lifting operation and can be reused.

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